1. The act or process of confirming or verifying the authenticity, accuracy, or legitimacy of something
The validation of the document was completed by the notary.
A validação do documento foi concluída pelo tabelião.
2. In computing and data processing, the process of checking that data meets specified requirements or formats
The system performs validation of email addresses before accepting them.
O sistema realiza a validação de endereços de email antes de aceitá-los.
3. Confirmation or ratification of something as valid or legal
The validation of the contract requires both parties' signatures.
A validação do contrato requer assinaturas de ambas as partes.